Hyoscyamine Impurity 8 CAS CATO-C4X-34378
| CAS No. | CATO-C4X-34378 |
| Molecular Formula | C18H23NO4 |
| Molecular Weight | 317.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C18H23NO4, Hyoscyamine Impurity 8 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 317.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a process- or degradation-related impurity, Hyoscyamine Impurity 8 (CAS CATO-C4X-34378, C18H23NO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H23NO4 |
| Molecular Weight | 317.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Hyoscyamine Standards
- Hyoscyamine Impurity 14 (CAS CATO-C4X-343714)
- Hyoscyamine Impurity 17 (CAS CATO-C4X-343717)
- Hyoscyamine Impurity 15 (CAS CATO-C4X-343715)
- L-Hyoscyamine-d3 (CAS CATO-C4X-34372)
- Hyoscyamine Hydrochloride - API Standards (CAS 5934-50-9)
- Hyoscyamine Impurity 10 (CAS CATO-C4X-343710)
- Hyoscyamine Impurity 12 (CAS CATO-C4X-343712)
- Hyoscyamine Impurity 6 (CAS CATO-C4X-34376)
Recommended Standards
- Lifitegrast Impurity 40 (CAS CATO-C4X-240940)
- Spirotetramat-keto-hydroxy (CAS 1172134-11-0)
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- rac Mono(5-carboxy-2-ethylpentyl) Phthalate-d9 (CAS CATO-CPAE111816)
- Aprepitant impurity 30 HCl (CAS CATO-C4X-237930)
- Azelastine impurity 54 (CAS CATO-C4X-139654)
- Lefamulinum Impurity 34 (CAS CATO-C4X-304734)
- 1-(3-Methyl-isothiazol-5-yl)-ethanone (CAS 90724-49-5)
- 2,2'-Disulfanediylbis(N-butylbenzamide) (CAS 2620-88-4)
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- Isopropyl (2S)-7-Cyano-4-(pyridin-2-ylmethyl)-1,2,3,4-tetrahydrocyclopenta[b]indol-2-ylcarbamate (CAS 1029692-15-6)
- 5,7-Difluorochroman (CAS 1541675-72-2)
- D-Leu26-Tirzepatide (CAS CATO-CPTD788908)
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